On Wed, 30 Jan 2008, Robert Lang wrote:
> On Tue, 29 Jan 2008, John North wrote:
>
>> I procrastinated too long on engine re-assembly. Now I see the
>> beginnings of corrosion in one of the bores. It's more like staining
>> than rust at this point. What's the best to do? Will a quick
>> polish with 400 or 1000 grit paper do any harm? Can't imagine it
>> will take more than .0005 off the bore... Other alternatives?
>
> Wipe them down with some motor oil. That'll lift the loose stuff that's
> there and leave a surface that won't rust further.
>
> If the assembly is to take place soon, buy a cylinder hone (or borrow it)
> and run it up/down the bores at low speed with an electric drill. Then
> wipe with a solvent and then clean with detergent and then assemble. I use
> kerosene as a lube when I do the light hone.
>
> You absolutely so not want to remove as much as .0005" from the bore. That
that should be DO not want.
Coffee hasn't kicked in yet.
> will change the piston skirt to wall dimension and the result will be
> piston slap. Piston fitment is very precise.
>
>> John North
C ya,
rml
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Bob Lang NER/SCCA | This space for rent
Solo Chair 2008 TR6 40 F Prepared | Triumph!
Voice:781-438-2568 FAX: 617-258-9535 | Cell: 339-927-4489
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